/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --rcfgbuilder.size.of.a.code.block SequenceOfStatements --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options produce-proofs=true --traceabstraction.additional.smt.options produce-unsat-cores=true --traceabstraction.additional.smt.options enumeration-timeout=5000 --traceabstraction.additional.smt.options interpolation-heuristic=SMALLESTAMONGWIDE --traceabstraction.additional.smt.options tolerance=0.2 --traceabstraction.additional.smt.options log-additional-information=true --traceabstraction.additional.smt.options unknown-allowed=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-64bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/ldv-linux-3.0/usb_urb-drivers-staging-lirc-lirc_imon.ko.cil.out.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-adbd35c [2020-10-15 06:50:17,819 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-15 06:50:17,822 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-15 06:50:17,846 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-15 06:50:17,847 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-15 06:50:17,848 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-15 06:50:17,849 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-15 06:50:17,850 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-15 06:50:17,852 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-15 06:50:17,853 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-15 06:50:17,854 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-15 06:50:17,855 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-15 06:50:17,855 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-15 06:50:17,856 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-15 06:50:17,857 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-15 06:50:17,858 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-15 06:50:17,859 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-15 06:50:17,860 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-15 06:50:17,861 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-15 06:50:17,863 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-15 06:50:17,864 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-15 06:50:17,865 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-15 06:50:17,866 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-15 06:50:17,867 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-15 06:50:17,871 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-15 06:50:17,872 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-15 06:50:17,872 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-15 06:50:17,873 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-15 06:50:17,873 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-15 06:50:17,876 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-15 06:50:17,876 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-15 06:50:17,877 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-15 06:50:17,878 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-15 06:50:17,878 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-15 06:50:17,879 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-15 06:50:17,879 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-15 06:50:17,882 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-15 06:50:17,882 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-15 06:50:17,882 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-15 06:50:17,883 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-15 06:50:17,884 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-15 06:50:17,884 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-64bit-Automizer_Default.epf [2020-10-15 06:50:17,932 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-15 06:50:17,933 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-15 06:50:17,934 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-15 06:50:17,934 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-15 06:50:17,934 INFO L138 SettingsManager]: * Use SBE=true [2020-10-15 06:50:17,934 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-15 06:50:17,935 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-15 06:50:17,935 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-15 06:50:17,935 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-15 06:50:17,936 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-15 06:50:17,936 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-15 06:50:17,936 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-15 06:50:17,936 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-15 06:50:17,936 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-15 06:50:17,936 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-15 06:50:17,937 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-15 06:50:17,937 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-15 06:50:17,938 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-15 06:50:17,938 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-15 06:50:17,938 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-15 06:50:17,938 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-15 06:50:17,939 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-15 06:50:17,939 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-15 06:50:17,939 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-15 06:50:17,939 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-15 06:50:17,939 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-15 06:50:17,940 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-10-15 06:50:17,940 INFO L138 SettingsManager]: * To the following directory=dump/ Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SequenceOfStatements Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.2;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.2;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.2;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.2;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.2;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.2;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.2;log-additional-information=true;unknown-allowed=true; [2020-10-15 06:50:18,249 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-15 06:50:18,260 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-15 06:50:18,264 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-15 06:50:18,265 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-15 06:50:18,266 INFO L275 PluginConnector]: CDTParser initialized [2020-10-15 06:50:18,266 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-linux-3.0/usb_urb-drivers-staging-lirc-lirc_imon.ko.cil.out.i [2020-10-15 06:50:18,323 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/b5f194004/277c96989d69495c91bb4015bf29f33f/FLAG742f8da38 [2020-10-15 06:50:19,164 INFO L306 CDTParser]: Found 1 translation units. [2020-10-15 06:50:19,165 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/ldv-linux-3.0/usb_urb-drivers-staging-lirc-lirc_imon.ko.cil.out.i [2020-10-15 06:50:19,206 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/b5f194004/277c96989d69495c91bb4015bf29f33f/FLAG742f8da38 [2020-10-15 06:50:19,700 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/b5f194004/277c96989d69495c91bb4015bf29f33f [2020-10-15 06:50:19,709 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-15 06:50:19,711 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-15 06:50:19,712 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-15 06:50:19,712 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-15 06:50:19,716 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-15 06:50:19,717 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 06:50:19" (1/1) ... [2020-10-15 06:50:19,719 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2737bf39 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 06:50:19, skipping insertion in model container [2020-10-15 06:50:19,720 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 06:50:19" (1/1) ... [2020-10-15 06:50:19,727 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-15 06:50:19,833 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-15 06:50:20,887 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-15 06:50:20,974 INFO L203 MainTranslator]: Completed pre-run [2020-10-15 06:50:21,214 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-15 06:50:21,412 INFO L208 MainTranslator]: Completed translation [2020-10-15 06:50:21,412 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 06:50:21 WrapperNode [2020-10-15 06:50:21,412 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-15 06:50:21,413 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-15 06:50:21,413 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-15 06:50:21,414 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-15 06:50:21,435 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 06:50:21" (1/1) ... [2020-10-15 06:50:21,436 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 06:50:21" (1/1) ... [2020-10-15 06:50:21,532 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 06:50:21" (1/1) ... [2020-10-15 06:50:21,533 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 06:50:21" (1/1) ... [2020-10-15 06:50:21,633 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 06:50:21" (1/1) ... [2020-10-15 06:50:21,652 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 06:50:21" (1/1) ... [2020-10-15 06:50:21,669 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 06:50:21" (1/1) ... [2020-10-15 06:50:21,689 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-15 06:50:21,689 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-15 06:50:21,690 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-15 06:50:21,690 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-15 06:50:21,693 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 06:50:21" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-15 06:50:21,762 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-15 06:50:21,762 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-15 06:50:21,762 INFO L138 BoogieDeclarations]: Found implementation of procedure PTR_ERR [2020-10-15 06:50:21,763 INFO L138 BoogieDeclarations]: Found implementation of procedure IS_ERR [2020-10-15 06:50:21,763 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_read [2020-10-15 06:50:21,763 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_set [2020-10-15 06:50:21,764 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2020-10-15 06:50:21,764 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2020-10-15 06:50:21,764 INFO L138 BoogieDeclarations]: Found implementation of procedure init_completion [2020-10-15 06:50:21,765 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2020-10-15 06:50:21,765 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc [2020-10-15 06:50:21,765 INFO L138 BoogieDeclarations]: Found implementation of procedure iminor [2020-10-15 06:50:21,766 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_get_intfdata [2020-10-15 06:50:21,766 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_set_intfdata [2020-10-15 06:50:21,766 INFO L138 BoogieDeclarations]: Found implementation of procedure interface_to_usbdev [2020-10-15 06:50:21,766 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_register [2020-10-15 06:50:21,767 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_fill_int_urb [2020-10-15 06:50:21,769 INFO L138 BoogieDeclarations]: Found implementation of procedure __create_pipe [2020-10-15 06:50:21,769 INFO L138 BoogieDeclarations]: Found implementation of procedure __kfifo_int_must_check_helper [2020-10-15 06:50:21,769 INFO L138 BoogieDeclarations]: Found implementation of procedure lirc_buffer_init [2020-10-15 06:50:21,770 INFO L138 BoogieDeclarations]: Found implementation of procedure lirc_buffer_free [2020-10-15 06:50:21,770 INFO L138 BoogieDeclarations]: Found implementation of procedure lirc_buffer_write [2020-10-15 06:50:21,770 INFO L138 BoogieDeclarations]: Found implementation of procedure free_imon_context [2020-10-15 06:50:21,770 INFO L138 BoogieDeclarations]: Found implementation of procedure deregister_from_lirc [2020-10-15 06:50:21,771 INFO L138 BoogieDeclarations]: Found implementation of procedure display_open [2020-10-15 06:50:21,771 INFO L138 BoogieDeclarations]: Found implementation of procedure display_close [2020-10-15 06:50:21,771 INFO L138 BoogieDeclarations]: Found implementation of procedure send_packet [2020-10-15 06:50:21,771 INFO L138 BoogieDeclarations]: Found implementation of procedure vfd_write [2020-10-15 06:50:21,771 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_tx_callback [2020-10-15 06:50:21,771 INFO L138 BoogieDeclarations]: Found implementation of procedure ir_open [2020-10-15 06:50:21,772 INFO L138 BoogieDeclarations]: Found implementation of procedure ir_close [2020-10-15 06:50:21,772 INFO L138 BoogieDeclarations]: Found implementation of procedure submit_data [2020-10-15 06:50:21,772 INFO L138 BoogieDeclarations]: Found implementation of procedure imon_incoming_packet [2020-10-15 06:50:21,772 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_rx_callback [2020-10-15 06:50:21,772 INFO L138 BoogieDeclarations]: Found implementation of procedure imon_probe [2020-10-15 06:50:21,773 INFO L138 BoogieDeclarations]: Found implementation of procedure imon_disconnect [2020-10-15 06:50:21,773 INFO L138 BoogieDeclarations]: Found implementation of procedure imon_suspend [2020-10-15 06:50:21,773 INFO L138 BoogieDeclarations]: Found implementation of procedure imon_resume [2020-10-15 06:50:21,773 INFO L138 BoogieDeclarations]: Found implementation of procedure imon_init [2020-10-15 06:50:21,773 INFO L138 BoogieDeclarations]: Found implementation of procedure imon_exit [2020-10-15 06:50:21,773 INFO L138 BoogieDeclarations]: Found implementation of procedure init_module [2020-10-15 06:50:21,773 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup_module [2020-10-15 06:50:21,774 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-15 06:50:21,774 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_blast_assert [2020-10-15 06:50:21,774 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assume_stop [2020-10-15 06:50:21,774 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_alloc_coherent [2020-10-15 06:50:21,774 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_free_coherent [2020-10-15 06:50:21,774 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_alloc_urb [2020-10-15 06:50:21,774 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_free_urb [2020-10-15 06:50:21,775 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2020-10-15 06:50:21,775 INFO L138 BoogieDeclarations]: Found implementation of procedure __init_waitqueue_head [2020-10-15 06:50:21,775 INFO L138 BoogieDeclarations]: Found implementation of procedure __kfifo_alloc [2020-10-15 06:50:21,775 INFO L138 BoogieDeclarations]: Found implementation of procedure __kfifo_free [2020-10-15 06:50:21,776 INFO L138 BoogieDeclarations]: Found implementation of procedure __kfifo_in [2020-10-15 06:50:21,776 INFO L138 BoogieDeclarations]: Found implementation of procedure __kfifo_in_r [2020-10-15 06:50:21,776 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2020-10-15 06:50:21,776 INFO L138 BoogieDeclarations]: Found implementation of procedure __kmalloc [2020-10-15 06:50:21,776 INFO L138 BoogieDeclarations]: Found implementation of procedure __mutex_init [2020-10-15 06:50:21,777 INFO L138 BoogieDeclarations]: Found implementation of procedure __raw_spin_lock_init [2020-10-15 06:50:21,777 INFO L138 BoogieDeclarations]: Found implementation of procedure __wake_up [2020-10-15 06:50:21,777 INFO L138 BoogieDeclarations]: Found implementation of procedure _dev_info [2020-10-15 06:50:21,777 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_lock_irqsave [2020-10-15 06:50:21,777 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_unlock_irqrestore [2020-10-15 06:50:21,777 INFO L138 BoogieDeclarations]: Found implementation of procedure complete [2020-10-15 06:50:21,777 INFO L138 BoogieDeclarations]: Found implementation of procedure complete_all [2020-10-15 06:50:21,778 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_get_drvdata [2020-10-15 06:50:21,778 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_printk [2020-10-15 06:50:21,778 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_set_drvdata [2020-10-15 06:50:21,778 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_warn [2020-10-15 06:50:21,778 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_return_value [2020-10-15 06:50:21,779 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_initialize [2020-10-15 06:50:21,779 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undefined_pointer [2020-10-15 06:50:21,780 INFO L138 BoogieDeclarations]: Found implementation of procedure lirc_register_driver [2020-10-15 06:50:21,780 INFO L138 BoogieDeclarations]: Found implementation of procedure lirc_unregister_driver [2020-10-15 06:50:21,780 INFO L138 BoogieDeclarations]: Found implementation of procedure memdup_user [2020-10-15 06:50:21,781 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock_nested [2020-10-15 06:50:21,781 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2020-10-15 06:50:21,781 INFO L138 BoogieDeclarations]: Found implementation of procedure printk [2020-10-15 06:50:21,781 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_deregister [2020-10-15 06:50:21,781 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_deregister_dev [2020-10-15 06:50:21,781 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_find_interface [2020-10-15 06:50:21,782 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_get_dev [2020-10-15 06:50:21,782 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_kill_urb [2020-10-15 06:50:21,782 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_match_id [2020-10-15 06:50:21,782 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_register_dev [2020-10-15 06:50:21,783 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_register_driver [2020-10-15 06:50:21,783 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_submit_urb [2020-10-15 06:50:21,783 INFO L138 BoogieDeclarations]: Found implementation of procedure wait_for_completion_interruptible [2020-10-15 06:50:21,783 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_fmt [2020-10-15 06:50:21,783 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2020-10-15 06:50:21,783 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2020-10-15 06:50:21,783 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_strcpy [2020-10-15 06:50:21,784 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-10-15 06:50:21,784 INFO L130 BoogieDeclarations]: Found specification of procedure printk [2020-10-15 06:50:21,784 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_fmt [2020-10-15 06:50:21,784 INFO L130 BoogieDeclarations]: Found specification of procedure memdup_user [2020-10-15 06:50:21,784 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy [2020-10-15 06:50:21,784 INFO L130 BoogieDeclarations]: Found specification of procedure strcpy [2020-10-15 06:50:21,784 INFO L130 BoogieDeclarations]: Found specification of procedure PTR_ERR [2020-10-15 06:50:21,784 INFO L130 BoogieDeclarations]: Found specification of procedure IS_ERR [2020-10-15 06:50:21,785 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_read [2020-10-15 06:50:21,785 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-15 06:50:21,785 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_set [2020-10-15 06:50:21,785 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-15 06:50:21,785 INFO L130 BoogieDeclarations]: Found specification of procedure __raw_spin_lock_init [2020-10-15 06:50:21,785 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_lock_irqsave [2020-10-15 06:50:21,785 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_unlock_irqrestore [2020-10-15 06:50:21,786 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2020-10-15 06:50:21,786 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2020-10-15 06:50:21,786 INFO L130 BoogieDeclarations]: Found specification of procedure __init_waitqueue_head [2020-10-15 06:50:21,786 INFO L130 BoogieDeclarations]: Found specification of procedure __wake_up [2020-10-15 06:50:21,786 INFO L130 BoogieDeclarations]: Found specification of procedure __mutex_init [2020-10-15 06:50:21,786 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock_nested [2020-10-15 06:50:21,786 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2020-10-15 06:50:21,787 INFO L130 BoogieDeclarations]: Found specification of procedure init_completion [2020-10-15 06:50:21,787 INFO L130 BoogieDeclarations]: Found specification of procedure wait_for_completion_interruptible [2020-10-15 06:50:21,787 INFO L130 BoogieDeclarations]: Found specification of procedure complete [2020-10-15 06:50:21,787 INFO L130 BoogieDeclarations]: Found specification of procedure complete_all [2020-10-15 06:50:21,787 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2020-10-15 06:50:21,787 INFO L130 BoogieDeclarations]: Found specification of procedure init_module [2020-10-15 06:50:21,788 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup_module [2020-10-15 06:50:21,788 INFO L130 BoogieDeclarations]: Found specification of procedure __kmalloc [2020-10-15 06:50:21,788 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2020-10-15 06:50:21,788 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2020-10-15 06:50:21,788 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc [2020-10-15 06:50:21,789 INFO L130 BoogieDeclarations]: Found specification of procedure dev_get_drvdata [2020-10-15 06:50:21,790 INFO L130 BoogieDeclarations]: Found specification of procedure dev_set_drvdata [2020-10-15 06:50:21,790 INFO L130 BoogieDeclarations]: Found specification of procedure dev_printk [2020-10-15 06:50:21,793 INFO L130 BoogieDeclarations]: Found specification of procedure dev_warn [2020-10-15 06:50:21,793 INFO L130 BoogieDeclarations]: Found specification of procedure _dev_info [2020-10-15 06:50:21,794 INFO L130 BoogieDeclarations]: Found specification of procedure iminor [2020-10-15 06:50:21,794 INFO L130 BoogieDeclarations]: Found specification of procedure noop_llseek [2020-10-15 06:50:21,794 INFO L130 BoogieDeclarations]: Found specification of procedure usb_get_intfdata [2020-10-15 06:50:21,795 INFO L130 BoogieDeclarations]: Found specification of procedure usb_set_intfdata [2020-10-15 06:50:21,795 INFO L130 BoogieDeclarations]: Found specification of procedure interface_to_usbdev [2020-10-15 06:50:21,795 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-10-15 06:50:21,795 INFO L130 BoogieDeclarations]: Found specification of procedure usb_get_dev [2020-10-15 06:50:21,796 INFO L130 BoogieDeclarations]: Found specification of procedure usb_match_id [2020-10-15 06:50:21,796 INFO L130 BoogieDeclarations]: Found specification of procedure usb_find_interface [2020-10-15 06:50:21,796 INFO L130 BoogieDeclarations]: Found specification of procedure usb_register_driver [2020-10-15 06:50:21,796 INFO L130 BoogieDeclarations]: Found specification of procedure usb_register [2020-10-15 06:50:21,796 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-15 06:50:21,796 INFO L130 BoogieDeclarations]: Found specification of procedure usb_deregister [2020-10-15 06:50:21,796 INFO L130 BoogieDeclarations]: Found specification of procedure usb_register_dev [2020-10-15 06:50:21,797 INFO L130 BoogieDeclarations]: Found specification of procedure usb_deregister_dev [2020-10-15 06:50:21,804 INFO L130 BoogieDeclarations]: Found specification of procedure usb_fill_int_urb [2020-10-15 06:50:21,804 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-10-15 06:50:21,804 INFO L130 BoogieDeclarations]: Found specification of procedure usb_alloc_urb [2020-10-15 06:50:21,804 INFO L130 BoogieDeclarations]: Found specification of procedure usb_free_urb [2020-10-15 06:50:21,804 INFO L130 BoogieDeclarations]: Found specification of procedure usb_submit_urb [2020-10-15 06:50:21,805 INFO L130 BoogieDeclarations]: Found specification of procedure usb_kill_urb [2020-10-15 06:50:21,805 INFO L130 BoogieDeclarations]: Found specification of procedure usb_alloc_coherent [2020-10-15 06:50:21,805 INFO L130 BoogieDeclarations]: Found specification of procedure usb_free_coherent [2020-10-15 06:50:21,805 INFO L130 BoogieDeclarations]: Found specification of procedure __create_pipe [2020-10-15 06:50:21,805 INFO L130 BoogieDeclarations]: Found specification of procedure __kfifo_int_must_check_helper [2020-10-15 06:50:21,806 INFO L130 BoogieDeclarations]: Found specification of procedure __kfifo_alloc [2020-10-15 06:50:21,806 INFO L130 BoogieDeclarations]: Found specification of procedure __kfifo_free [2020-10-15 06:50:21,806 INFO L130 BoogieDeclarations]: Found specification of procedure __kfifo_in [2020-10-15 06:50:21,806 INFO L130 BoogieDeclarations]: Found specification of procedure __kfifo_in_r [2020-10-15 06:50:21,806 INFO L130 BoogieDeclarations]: Found specification of procedure lirc_buffer_init [2020-10-15 06:50:21,806 INFO L130 BoogieDeclarations]: Found specification of procedure lirc_buffer_free [2020-10-15 06:50:21,806 INFO L130 BoogieDeclarations]: Found specification of procedure lirc_buffer_write [2020-10-15 06:50:21,806 INFO L130 BoogieDeclarations]: Found specification of procedure lirc_register_driver [2020-10-15 06:50:21,807 INFO L130 BoogieDeclarations]: Found specification of procedure lirc_unregister_driver [2020-10-15 06:50:21,807 INFO L130 BoogieDeclarations]: Found specification of procedure imon_probe [2020-10-15 06:50:21,807 INFO L130 BoogieDeclarations]: Found specification of procedure imon_disconnect [2020-10-15 06:50:21,807 INFO L130 BoogieDeclarations]: Found specification of procedure usb_rx_callback [2020-10-15 06:50:21,807 INFO L130 BoogieDeclarations]: Found specification of procedure usb_tx_callback [2020-10-15 06:50:21,807 INFO L130 BoogieDeclarations]: Found specification of procedure imon_resume [2020-10-15 06:50:21,807 INFO L130 BoogieDeclarations]: Found specification of procedure imon_suspend [2020-10-15 06:50:21,807 INFO L130 BoogieDeclarations]: Found specification of procedure display_open [2020-10-15 06:50:21,807 INFO L130 BoogieDeclarations]: Found specification of procedure display_close [2020-10-15 06:50:21,808 INFO L130 BoogieDeclarations]: Found specification of procedure vfd_write [2020-10-15 06:50:21,808 INFO L130 BoogieDeclarations]: Found specification of procedure ir_open [2020-10-15 06:50:21,808 INFO L130 BoogieDeclarations]: Found specification of procedure ir_close [2020-10-15 06:50:21,808 INFO L130 BoogieDeclarations]: Found specification of procedure imon_init [2020-10-15 06:50:21,808 INFO L130 BoogieDeclarations]: Found specification of procedure imon_exit [2020-10-15 06:50:21,808 INFO L130 BoogieDeclarations]: Found specification of procedure free_imon_context [2020-10-15 06:50:21,808 INFO L130 BoogieDeclarations]: Found specification of procedure deregister_from_lirc [2020-10-15 06:50:21,808 INFO L130 BoogieDeclarations]: Found specification of procedure send_packet [2020-10-15 06:50:21,809 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2020-10-15 06:50:21,809 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-15 06:50:21,809 INFO L130 BoogieDeclarations]: Found specification of procedure submit_data [2020-10-15 06:50:21,809 INFO L130 BoogieDeclarations]: Found specification of procedure imon_incoming_packet [2020-10-15 06:50:21,809 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_strcpy [2020-10-15 06:50:21,809 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2020-10-15 06:50:21,809 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_return_value [2020-10-15 06:50:21,809 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_initialize [2020-10-15 06:50:21,810 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-15 06:50:21,810 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-15 06:50:21,810 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_blast_assert [2020-10-15 06:50:21,810 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undefined_pointer [2020-10-15 06:50:21,810 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assume_stop [2020-10-15 06:50:21,810 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_uint [2020-10-15 06:50:21,810 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_bool [2020-10-15 06:50:21,810 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-10-15 06:50:21,811 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2020-10-15 06:50:21,811 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-10-15 06:50:21,811 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_ulong [2020-10-15 06:50:21,811 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-10-15 06:50:21,811 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-15 06:50:21,811 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-15 06:50:21,811 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2020-10-15 06:50:21,811 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-15 06:50:21,812 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2020-10-15 06:50:21,812 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2020-10-15 06:50:21,812 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2020-10-15 06:50:21,812 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2020-10-15 06:50:23,410 INFO L732 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_assume_stopFINAL: assume true; [2020-10-15 06:50:28,969 WARN L779 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2020-10-15 06:50:28,985 INFO L732 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##10: assume !false; [2020-10-15 06:50:28,986 INFO L732 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##9: assume false; [2020-10-15 06:50:29,132 WARN L779 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2020-10-15 06:50:29,171 INFO L732 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##23: assume !false; [2020-10-15 06:50:29,171 INFO L732 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##22: assume false; [2020-10-15 06:50:29,465 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-15 06:50:29,467 INFO L295 CfgBuilder]: Removed 40 assume(true) statements. [2020-10-15 06:50:29,477 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 06:50:29 BoogieIcfgContainer [2020-10-15 06:50:29,478 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-15 06:50:29,480 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-15 06:50:29,480 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-15 06:50:29,483 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-15 06:50:29,484 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.10 06:50:19" (1/3) ... [2020-10-15 06:50:29,484 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@53b8fca and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 06:50:29, skipping insertion in model container [2020-10-15 06:50:29,485 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 06:50:21" (2/3) ... [2020-10-15 06:50:29,485 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@53b8fca and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 06:50:29, skipping insertion in model container [2020-10-15 06:50:29,485 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 06:50:29" (3/3) ... [2020-10-15 06:50:29,487 INFO L109 eAbstractionObserver]: Analyzing ICFG usb_urb-drivers-staging-lirc-lirc_imon.ko.cil.out.i [2020-10-15 06:50:29,496 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-15 06:50:29,505 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-15 06:50:29,519 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-15 06:50:29,549 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-10-15 06:50:29,549 INFO L376 AbstractCegarLoop]: Hoare is true [2020-10-15 06:50:29,549 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-15 06:50:29,550 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-15 06:50:29,550 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-15 06:50:29,550 INFO L380 AbstractCegarLoop]: Difference is false [2020-10-15 06:50:29,550 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-15 06:50:29,550 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-15 06:50:29,592 INFO L276 IsEmpty]: Start isEmpty. Operand 691 states. [2020-10-15 06:50:29,597 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2020-10-15 06:50:29,597 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 06:50:29,598 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 06:50:29,598 INFO L427 AbstractCegarLoop]: === Iteration 1 === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 06:50:29,602 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 06:50:29,602 INFO L82 PathProgramCache]: Analyzing trace with hash -1189821431, now seen corresponding path program 1 times [2020-10-15 06:50:29,611 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 06:50:29,611 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2128326529] [2020-10-15 06:50:29,611 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 06:50:30,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 06:50:30,632 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 06:50:35,486 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 06:50:35,487 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 48 [2020-10-15 06:50:35,487 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 06:50:35,490 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5109 [2020-10-15 06:50:35,499 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 06:50:35,499 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 06:50:35,499 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-15 06:50:35,500 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-15 06:50:35,500 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 39 [2020-10-15 06:50:35,500 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-10-15 06:50:40,454 WARN L193 SmtUtils]: Spent 4.65 s on a formula simplification that was a NOOP. DAG size: 1057 [2020-10-15 06:50:40,458 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 06:50:40,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 06:50:40,696 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 06:50:43,380 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 06:50:43,381 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 06:50:43,381 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 06:50:43,381 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2807 [2020-10-15 06:50:43,381 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 06:50:43,382 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 06:50:43,382 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 06:50:43,382 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 06:50:43,382 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-15 06:50:43,383 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 06:50:43,563 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-15 06:50:43,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 06:50:43,569 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 06:50:43,577 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 06:50:43,577 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-15 06:50:43,577 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 06:50:43,578 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-15 06:50:43,578 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 06:50:43,578 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 06:50:43,578 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 06:50:43,578 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 06:50:43,579 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-15 06:50:43,579 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 06:50:43,585 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-10-15 06:50:43,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 06:50:43,601 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 06:50:43,632 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 06:50:43,633 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 23 [2020-10-15 06:50:43,633 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 06:50:43,633 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 39 [2020-10-15 06:50:43,633 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 06:50:43,633 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 06:50:43,634 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 06:50:43,634 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 06:50:43,634 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 20 [2020-10-15 06:50:43,634 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 06:50:43,644 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-15 06:50:43,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 06:50:43,649 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 06:50:43,658 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 06:50:43,658 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-10-15 06:50:43,658 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 06:50:43,659 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-15 06:50:43,659 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 06:50:43,659 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 06:50:43,659 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 06:50:43,659 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 06:50:43,660 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 06:50:43,660 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 06:50:43,666 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-15 06:50:43,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 06:50:43,672 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 06:50:43,676 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 06:50:43,676 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 06:50:43,676 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 06:50:43,677 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-15 06:50:43,677 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 06:50:43,677 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 06:50:43,677 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 06:50:43,678 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 06:50:43,678 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 06:50:43,678 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 06:50:43,708 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 06:50:43,709 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2128326529] [2020-10-15 06:50:43,711 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 06:50:43,711 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-15 06:50:43,712 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [283682294] [2020-10-15 06:50:43,717 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-15 06:50:43,718 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 06:50:43,731 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-15 06:50:43,732 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-15 06:50:43,734 INFO L87 Difference]: Start difference. First operand 691 states. Second operand 4 states. [2020-10-15 06:50:50,206 WARN L193 SmtUtils]: Spent 4.15 s on a formula simplification that was a NOOP. DAG size: 1059 [2020-10-15 06:51:14,335 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 06:51:14,336 INFO L93 Difference]: Finished difference Result 1634 states and 2443 transitions. [2020-10-15 06:51:14,336 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-15 06:51:14,337 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 30 [2020-10-15 06:51:14,338 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 06:51:14,365 INFO L225 Difference]: With dead ends: 1634 [2020-10-15 06:51:14,365 INFO L226 Difference]: Without dead ends: 1212 [2020-10-15 06:51:14,373 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 8.8s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-15 06:51:14,392 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1212 states. [2020-10-15 06:51:14,906 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1212 to 954. [2020-10-15 06:51:14,908 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 954 states. [2020-10-15 06:51:14,914 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 954 states to 954 states and 1245 transitions. [2020-10-15 06:51:14,916 INFO L78 Accepts]: Start accepts. Automaton has 954 states and 1245 transitions. Word has length 30 [2020-10-15 06:51:14,917 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 06:51:14,917 INFO L479 AbstractCegarLoop]: Abstraction has 954 states and 1245 transitions. [2020-10-15 06:51:14,917 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-15 06:51:14,917 INFO L276 IsEmpty]: Start isEmpty. Operand 954 states and 1245 transitions. [2020-10-15 06:51:14,918 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2020-10-15 06:51:14,918 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 06:51:14,918 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 06:51:14,919 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-15 06:51:14,919 INFO L427 AbstractCegarLoop]: === Iteration 2 === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 06:51:14,919 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 06:51:14,919 INFO L82 PathProgramCache]: Analyzing trace with hash 1769900848, now seen corresponding path program 1 times [2020-10-15 06:51:14,920 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 06:51:14,920 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [632456418] [2020-10-15 06:51:14,920 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 06:51:15,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 06:51:15,205 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 06:51:19,066 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 06:51:19,066 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 49 [2020-10-15 06:51:19,067 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 06:51:19,067 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3994 [2020-10-15 06:51:19,067 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 06:51:19,067 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 06:51:19,068 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 06:51:19,068 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-15 06:51:19,068 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 40 [2020-10-15 06:51:19,068 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 06:51:23,323 WARN L193 SmtUtils]: Spent 4.07 s on a formula simplification that was a NOOP. DAG size: 1057 [2020-10-15 06:51:23,324 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 06:51:23,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 06:51:23,463 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 06:51:25,270 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 06:51:25,270 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 06:51:25,270 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 06:51:25,271 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1866 [2020-10-15 06:51:25,271 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 06:51:25,271 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 06:51:25,272 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 06:51:25,272 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 06:51:25,272 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-15 06:51:25,273 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 06:51:25,413 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-15 06:51:25,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 06:51:25,422 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 06:51:25,429 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 06:51:25,429 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-15 06:51:25,429 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 06:51:25,429 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-15 06:51:25,430 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 06:51:25,430 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 06:51:25,430 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 06:51:25,432 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 06:51:25,432 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-15 06:51:25,432 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-15 06:51:25,437 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-10-15 06:51:25,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 06:51:25,447 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 06:51:25,466 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 06:51:25,467 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 23 [2020-10-15 06:51:25,467 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 06:51:25,467 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 24 [2020-10-15 06:51:25,468 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 06:51:25,468 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 06:51:25,468 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 06:51:25,468 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 06:51:25,469 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 20 [2020-10-15 06:51:25,469 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 06:51:25,477 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-15 06:51:25,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 06:51:25,482 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 06:51:25,487 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 06:51:25,488 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-10-15 06:51:25,488 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 06:51:25,488 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-15 06:51:25,488 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 06:51:25,489 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 06:51:25,489 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 06:51:25,489 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 06:51:25,489 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 06:51:25,489 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 06:51:25,499 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-15 06:51:25,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 06:51:25,503 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 06:51:25,506 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 06:51:25,506 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 06:51:25,506 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 06:51:25,506 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-15 06:51:25,506 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 06:51:25,507 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 06:51:25,507 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 06:51:25,507 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 06:51:25,507 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 06:51:25,508 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 06:51:25,526 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 06:51:25,526 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [632456418] [2020-10-15 06:51:25,526 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 06:51:25,527 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-15 06:51:25,527 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1994728843] [2020-10-15 06:51:25,528 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-15 06:51:25,528 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 06:51:25,529 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-15 06:51:25,529 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-15 06:51:25,529 INFO L87 Difference]: Start difference. First operand 954 states and 1245 transitions. Second operand 4 states. [2020-10-15 06:51:31,921 WARN L193 SmtUtils]: Spent 4.12 s on a formula simplification that was a NOOP. DAG size: 1059 [2020-10-15 06:51:44,278 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 06:51:44,279 INFO L93 Difference]: Finished difference Result 1211 states and 1653 transitions. [2020-10-15 06:51:44,281 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-15 06:51:44,281 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 31 [2020-10-15 06:51:44,282 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 06:51:44,293 INFO L225 Difference]: With dead ends: 1211 [2020-10-15 06:51:44,293 INFO L226 Difference]: Without dead ends: 1197 [2020-10-15 06:51:44,294 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 8.2s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-15 06:51:44,297 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1197 states. [2020-10-15 06:51:44,832 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1197 to 942. [2020-10-15 06:51:44,832 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 942 states. [2020-10-15 06:51:44,839 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 942 states to 942 states and 1229 transitions. [2020-10-15 06:51:44,839 INFO L78 Accepts]: Start accepts. Automaton has 942 states and 1229 transitions. Word has length 31 [2020-10-15 06:51:44,839 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 06:51:44,840 INFO L479 AbstractCegarLoop]: Abstraction has 942 states and 1229 transitions. [2020-10-15 06:51:44,840 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-15 06:51:44,840 INFO L276 IsEmpty]: Start isEmpty. Operand 942 states and 1229 transitions. [2020-10-15 06:51:44,843 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2020-10-15 06:51:44,843 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 06:51:44,843 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 06:51:44,843 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-15 06:51:44,843 INFO L427 AbstractCegarLoop]: === Iteration 3 === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 06:51:44,844 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 06:51:44,844 INFO L82 PathProgramCache]: Analyzing trace with hash 1201633426, now seen corresponding path program 1 times [2020-10-15 06:51:44,844 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 06:51:44,844 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1282078117] [2020-10-15 06:51:44,844 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 06:51:44,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 06:51:45,172 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 06:51:45,519 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 06:51:50,581 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 06:51:50,582 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 93 [2020-10-15 06:51:50,582 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-15 06:51:50,582 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5595 [2020-10-15 06:51:50,583 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 06:51:50,583 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 06:51:50,583 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-15 06:51:50,583 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 35 [2020-10-15 06:51:50,583 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-15 06:51:50,584 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 06:51:54,844 WARN L193 SmtUtils]: Spent 4.04 s on a formula simplification that was a NOOP. DAG size: 1057 [2020-10-15 06:51:54,847 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 06:51:54,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 06:51:54,887 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 06:51:56,169 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 06:51:56,169 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 06:51:56,169 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 06:51:56,170 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1293 [2020-10-15 06:51:56,170 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 06:51:56,170 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 06:51:56,170 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 06:51:56,170 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 06:51:56,171 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 06:51:56,171 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 06:51:56,268 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-15 06:51:56,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 06:51:56,271 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 06:51:56,273 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 06:51:56,273 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-15 06:51:56,273 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 06:51:56,273 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-15 06:51:56,273 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 06:51:56,274 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 06:51:56,274 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 06:51:56,274 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 06:51:56,274 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 06:51:56,274 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 06:51:56,277 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-10-15 06:51:56,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 06:51:56,284 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 06:51:56,299 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 06:51:56,299 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 23 [2020-10-15 06:51:56,299 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 06:51:56,300 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-10-15 06:51:56,300 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 06:51:56,300 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 06:51:56,300 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-15 06:51:56,300 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 06:51:56,301 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 19 [2020-10-15 06:51:56,301 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 06:51:56,342 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-15 06:51:56,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 06:51:56,346 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 06:51:56,351 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 06:51:56,351 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-10-15 06:51:56,351 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 06:51:56,351 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-15 06:51:56,351 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 06:51:56,352 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 06:51:56,352 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 06:51:56,352 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 06:51:56,352 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 06:51:56,352 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 06:51:56,357 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-15 06:51:56,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 06:51:56,360 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 06:51:56,362 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 06:51:56,362 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 06:51:56,363 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 06:51:56,363 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-15 06:51:56,363 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 06:51:56,363 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 06:51:56,363 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 06:51:56,364 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 06:51:56,364 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 06:51:56,364 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 06:51:56,391 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2020-10-15 06:51:56,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 06:51:56,405 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 06:51:56,415 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 06:51:56,415 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 30 [2020-10-15 06:51:56,415 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 06:51:56,416 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-10-15 06:51:56,416 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 06:51:56,416 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 06:51:56,416 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 06:51:56,416 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 27 [2020-10-15 06:51:56,416 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 06:51:56,417 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 06:51:56,422 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-15 06:51:56,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 06:51:56,427 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 06:51:56,433 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 06:51:56,433 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 23 [2020-10-15 06:51:56,433 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 06:51:56,433 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-15 06:51:56,434 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 06:51:56,434 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 06:51:56,434 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 06:51:56,434 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 06:51:56,434 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 06:51:56,435 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 06:51:56,439 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-15 06:51:56,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 06:51:56,446 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 06:51:56,453 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 06:51:56,453 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-15 06:51:56,453 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 06:51:56,454 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-15 06:51:56,454 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 06:51:56,454 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 06:51:56,454 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 06:51:56,454 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 06:51:56,454 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 06:51:56,455 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 06:51:56,459 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-15 06:51:56,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 06:51:56,462 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 06:51:56,464 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 06:51:56,465 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-15 06:51:56,465 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 06:51:56,465 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-15 06:51:56,465 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 06:51:56,465 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 06:51:56,466 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 06:51:56,466 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 06:51:56,466 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 06:51:56,466 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 06:51:56,501 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 06:51:56,503 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1282078117] [2020-10-15 06:51:56,503 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 06:51:56,503 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-10-15 06:51:56,503 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1151220683] [2020-10-15 06:51:56,504 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-15 06:51:56,504 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 06:51:56,505 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-15 06:51:56,505 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2020-10-15 06:51:56,505 INFO L87 Difference]: Start difference. First operand 942 states and 1229 transitions. Second operand 7 states. [2020-10-15 06:52:03,357 WARN L193 SmtUtils]: Spent 4.15 s on a formula simplification that was a NOOP. DAG size: 1063 [2020-10-15 06:52:24,088 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 06:52:24,088 INFO L93 Difference]: Finished difference Result 2179 states and 2954 transitions. [2020-10-15 06:52:24,088 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-15 06:52:24,089 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 65 [2020-10-15 06:52:24,089 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 06:52:24,096 INFO L225 Difference]: With dead ends: 2179 [2020-10-15 06:52:24,097 INFO L226 Difference]: Without dead ends: 1259 [2020-10-15 06:52:24,100 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 8.3s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2020-10-15 06:52:24,101 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1259 states. [2020-10-15 06:52:24,556 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1259 to 942. [2020-10-15 06:52:24,556 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 942 states. [2020-10-15 06:52:24,560 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 942 states to 942 states and 1228 transitions. [2020-10-15 06:52:24,561 INFO L78 Accepts]: Start accepts. Automaton has 942 states and 1228 transitions. Word has length 65 [2020-10-15 06:52:24,561 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 06:52:24,562 INFO L479 AbstractCegarLoop]: Abstraction has 942 states and 1228 transitions. [2020-10-15 06:52:24,562 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-15 06:52:24,562 INFO L276 IsEmpty]: Start isEmpty. Operand 942 states and 1228 transitions. [2020-10-15 06:52:24,564 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2020-10-15 06:52:24,564 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 06:52:24,564 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 06:52:24,564 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-15 06:52:24,565 INFO L427 AbstractCegarLoop]: === Iteration 4 === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 06:52:24,565 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 06:52:24,565 INFO L82 PathProgramCache]: Analyzing trace with hash 176939505, now seen corresponding path program 1 times [2020-10-15 06:52:24,565 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 06:52:24,566 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [750383755] [2020-10-15 06:52:24,566 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 06:52:24,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 06:52:24,857 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 06:52:27,458 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 06:52:30,538 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 06:52:30,538 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 93 [2020-10-15 06:52:30,538 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-15 06:52:30,539 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5823 [2020-10-15 06:52:30,539 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 06:52:30,539 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 06:52:30,539 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-15 06:52:30,539 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 49 [2020-10-15 06:52:30,539 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 39 [2020-10-15 06:52:30,540 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 06:52:34,962 WARN L193 SmtUtils]: Spent 4.16 s on a formula simplification that was a NOOP. DAG size: 1057 [2020-10-15 06:52:34,964 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 06:52:34,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 06:52:35,002 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 06:52:36,706 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 06:52:36,707 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 06:52:36,707 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 06:52:36,707 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1715 [2020-10-15 06:52:36,707 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 06:52:36,708 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 06:52:36,708 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 06:52:36,708 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 06:52:36,708 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 06:52:36,708 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 06:52:36,798 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-15 06:52:36,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 06:52:36,801 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 06:52:36,802 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 06:52:36,802 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-15 06:52:36,803 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 06:52:36,803 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-15 06:52:36,803 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 06:52:36,803 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 06:52:36,803 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 06:52:36,804 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 06:52:36,804 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 06:52:36,804 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 06:52:36,807 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-10-15 06:52:36,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 06:52:36,811 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 06:52:36,816 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 06:52:36,817 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 23 [2020-10-15 06:52:36,817 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 06:52:36,817 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-15 06:52:36,817 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 06:52:36,818 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 06:52:36,818 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 06:52:36,818 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 06:52:36,818 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 06:52:36,818 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 06:52:36,823 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-15 06:52:36,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 06:52:36,827 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 06:52:36,831 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 06:52:36,831 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-10-15 06:52:36,832 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 06:52:36,832 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-15 06:52:36,832 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 06:52:36,832 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 06:52:36,832 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 06:52:36,833 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 06:52:36,833 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 06:52:36,833 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 06:52:36,837 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-15 06:52:36,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 06:52:36,840 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 06:52:36,843 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 06:52:36,843 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 06:52:36,843 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 06:52:36,844 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-15 06:52:36,844 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 06:52:36,844 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 06:52:36,844 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 06:52:36,845 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 06:52:36,845 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 06:52:36,845 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 06:52:36,879 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2020-10-15 06:52:36,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 06:52:36,890 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 06:52:36,904 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 06:52:36,904 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 30 [2020-10-15 06:52:36,904 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 06:52:36,905 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-10-15 06:52:36,905 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 06:52:36,905 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 06:52:36,905 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 06:52:36,906 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 06:52:36,906 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 27 [2020-10-15 06:52:36,906 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 06:52:36,912 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-15 06:52:36,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 06:52:36,917 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 06:52:36,922 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 06:52:36,922 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 23 [2020-10-15 06:52:36,922 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 06:52:36,923 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-15 06:52:36,923 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 06:52:36,923 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 06:52:36,923 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 06:52:36,924 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 06:52:36,924 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 06:52:36,924 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 06:52:36,929 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-15 06:52:36,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 06:52:36,932 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 06:52:36,952 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 06:52:36,953 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-15 06:52:36,953 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 06:52:36,953 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 22 [2020-10-15 06:52:36,953 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 06:52:36,954 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 06:52:36,954 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 06:52:36,954 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 06:52:36,954 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 06:52:36,954 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 06:52:36,958 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-15 06:52:36,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 06:52:36,962 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 06:52:36,964 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 06:52:36,964 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-15 06:52:36,964 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 06:52:36,965 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-15 06:52:36,965 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 06:52:36,965 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 06:52:36,965 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 06:52:36,965 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 06:52:36,966 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 06:52:36,966 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 06:52:36,998 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 06:52:36,998 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [750383755] [2020-10-15 06:52:36,998 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 06:52:36,999 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-10-15 06:52:36,999 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [771129196] [2020-10-15 06:52:36,999 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-15 06:52:36,999 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 06:52:37,000 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-15 06:52:37,000 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2020-10-15 06:52:37,000 INFO L87 Difference]: Start difference. First operand 942 states and 1228 transitions. Second operand 7 states. [2020-10-15 06:52:43,850 WARN L193 SmtUtils]: Spent 4.16 s on a formula simplification that was a NOOP. DAG size: 1062 [2020-10-15 06:52:49,489 WARN L193 SmtUtils]: Spent 4.09 s on a formula simplification that was a NOOP. DAG size: 1062 [2020-10-15 06:52:53,777 WARN L193 SmtUtils]: Spent 4.19 s on a formula simplification that was a NOOP. DAG size: 1066 [2020-10-15 06:52:58,308 WARN L193 SmtUtils]: Spent 4.13 s on a formula simplification that was a NOOP. DAG size: 1062 [2020-10-15 06:53:15,419 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 06:53:15,419 INFO L93 Difference]: Finished difference Result 2293 states and 3160 transitions. [2020-10-15 06:53:15,420 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-15 06:53:15,420 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 65 [2020-10-15 06:53:15,421 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 06:53:15,429 INFO L225 Difference]: With dead ends: 2293 [2020-10-15 06:53:15,429 INFO L226 Difference]: Without dead ends: 1366 [2020-10-15 06:53:15,432 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 21.0s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2020-10-15 06:53:15,434 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1366 states. [2020-10-15 06:53:15,978 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1366 to 945. [2020-10-15 06:53:15,979 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 945 states. [2020-10-15 06:53:15,983 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 945 states to 945 states and 1231 transitions. [2020-10-15 06:53:15,984 INFO L78 Accepts]: Start accepts. Automaton has 945 states and 1231 transitions. Word has length 65 [2020-10-15 06:53:15,985 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 06:53:15,985 INFO L479 AbstractCegarLoop]: Abstraction has 945 states and 1231 transitions. [2020-10-15 06:53:15,985 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-15 06:53:15,985 INFO L276 IsEmpty]: Start isEmpty. Operand 945 states and 1231 transitions. [2020-10-15 06:53:15,992 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2020-10-15 06:53:15,992 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 06:53:15,992 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 06:53:15,992 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-15 06:53:15,993 INFO L427 AbstractCegarLoop]: === Iteration 5 === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 06:53:15,993 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 06:53:15,993 INFO L82 PathProgramCache]: Analyzing trace with hash -43957718, now seen corresponding path program 1 times [2020-10-15 06:53:15,993 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 06:53:15,994 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2093212592] [2020-10-15 06:53:15,994 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 06:53:16,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 06:53:16,262 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 06:53:18,440 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 06:53:21,284 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 06:53:21,284 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 94 [2020-10-15 06:53:21,284 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-15 06:53:21,284 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5141 [2020-10-15 06:53:21,285 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 06:53:21,285 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 06:53:21,285 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-15 06:53:21,285 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 49 [2020-10-15 06:53:21,285 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 40 [2020-10-15 06:53:21,286 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 06:53:25,888 WARN L193 SmtUtils]: Spent 4.36 s on a formula simplification that was a NOOP. DAG size: 1057 [2020-10-15 06:53:25,890 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 06:53:25,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 06:53:25,919 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 06:53:26,673 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 06:53:26,674 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 06:53:26,674 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 06:53:26,674 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 761 [2020-10-15 06:53:26,674 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 06:53:26,674 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 06:53:26,675 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 06:53:26,675 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 06:53:26,675 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 06:53:26,675 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 06:53:26,747 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-15 06:53:26,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 06:53:26,749 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 06:53:26,750 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 06:53:26,750 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-15 06:53:26,750 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 06:53:26,750 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-15 06:53:26,750 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 06:53:26,750 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 06:53:26,751 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 06:53:26,751 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 06:53:26,751 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 06:53:26,751 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 06:53:26,753 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-10-15 06:53:26,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 06:53:26,756 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 06:53:26,761 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 06:53:26,761 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 23 [2020-10-15 06:53:26,762 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 06:53:26,762 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-15 06:53:26,762 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 06:53:26,762 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 06:53:26,763 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 06:53:26,763 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 06:53:26,763 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 06:53:26,763 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 06:53:26,767 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-15 06:53:26,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 06:53:26,771 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 06:53:26,774 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 06:53:26,774 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-10-15 06:53:26,775 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 06:53:26,775 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-15 06:53:26,775 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 06:53:26,775 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 06:53:26,776 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 06:53:26,776 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 06:53:26,776 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 06:53:26,776 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 06:53:26,780 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-15 06:53:26,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 06:53:26,783 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 06:53:26,785 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 06:53:26,785 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 06:53:26,785 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 06:53:26,785 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-15 06:53:26,786 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 06:53:26,786 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 06:53:26,786 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 06:53:26,786 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 06:53:26,787 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 06:53:26,787 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 06:53:26,824 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2020-10-15 06:53:26,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 06:53:26,833 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 06:53:27,508 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 06:53:27,508 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 30 [2020-10-15 06:53:27,508 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 06:53:27,509 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 679 [2020-10-15 06:53:27,509 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 06:53:27,512 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 06:53:27,512 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 06:53:27,512 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 06:53:27,512 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 27 [2020-10-15 06:53:27,512 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-10-15 06:53:27,520 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-15 06:53:27,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 06:53:27,524 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 06:53:27,529 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 06:53:27,529 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 23 [2020-10-15 06:53:27,530 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 06:53:27,530 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-15 06:53:27,530 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 06:53:27,530 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 06:53:27,530 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 06:53:27,531 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 06:53:27,531 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 06:53:27,531 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 06:53:27,535 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-15 06:53:27,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 06:53:27,539 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 06:53:27,543 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 06:53:27,543 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-15 06:53:27,544 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 06:53:27,544 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-15 06:53:27,544 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 06:53:27,544 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 06:53:27,544 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 06:53:27,545 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 06:53:27,545 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 06:53:27,545 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 06:53:27,549 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-15 06:53:27,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 06:53:27,552 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 06:53:27,555 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 06:53:27,555 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-15 06:53:27,555 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 06:53:27,555 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-15 06:53:27,556 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 06:53:27,556 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 06:53:27,556 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 06:53:27,556 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 06:53:27,556 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 06:53:27,557 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 06:53:27,586 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 06:53:27,587 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2093212592] [2020-10-15 06:53:27,587 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 06:53:27,587 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-10-15 06:53:27,588 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1598057266] [2020-10-15 06:53:27,588 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-15 06:53:27,588 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 06:53:27,588 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-15 06:53:27,589 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2020-10-15 06:53:27,589 INFO L87 Difference]: Start difference. First operand 945 states and 1231 transitions. Second operand 7 states. [2020-10-15 06:53:34,352 WARN L193 SmtUtils]: Spent 4.07 s on a formula simplification that was a NOOP. DAG size: 1062 [2020-10-15 06:53:40,027 WARN L193 SmtUtils]: Spent 4.13 s on a formula simplification that was a NOOP. DAG size: 1062 [2020-10-15 06:53:44,284 WARN L193 SmtUtils]: Spent 4.15 s on a formula simplification that was a NOOP. DAG size: 1066 [2020-10-15 06:53:53,492 WARN L193 SmtUtils]: Spent 4.15 s on a formula simplification that was a NOOP. DAG size: 1062